a schlong is something...something, its big, and long, and occasionally hard, normally while watching porn.
Chicks dont have one.
Dudes do, well, some...
Well, its German, and Yiddish, and WHOA THERE GOES ANOTHER ONE!

The schlong was long.
I schlonged yer mom!
Eric has no schlong.
Damn, thats some schlong he's got there.
AND THE WINNING SCHLONG IS...

it is possible that "schlong" has derived from the german word "Schlange" (meaning "snake"). Though that word is not pronounced like "shlong", it sounds more like "shlung-eh" or "shlahng-eh". So there has to be a link in between the german and the english - i thinks its a yiddish word, "schlong", still meaning "snake".

A malesexual organ. In 1990, Dr Himelstoss Von Schlong had an experiment in the Vienna laboratory with an autopsy specimen. As he inspected the lower abdomen, he viewed the genitals, which to his utter surprise, were 24" U.S. cm in good length. The doctor, proceeded to remove the gargantuan penis by means of chainsaw, when he cut off his own erect penis which for some reason was out at the time. He shreiked in pain, "Sch-" (meaning to say Schiesse, the German word for excrement, US equivelent is 'shit'.) but an aid walked in and asked him "Herr Doctor, how long are you going to take wis ze autopsy?" As the doctor died slowly, he muttered "-long!". At his funeral, it was given to him the honors of naming the word "Schlong" as a reference to a long, throbbing, red-tipped, veiny penis, for the reasons of one, being his family's surname, and two, the last words he muttered. His first words as a child were "Schlong" as well. He died September 19, 1990 at age 43.

Hey ladies, I'm Mark... dont mind my schlong hangin' out... just gettin it some fresh air.
Oh my, what a long schlong, I wonder how that will fit in my mouth, not to mention my vagina!